If you have questions regarding the compatibility with your vehicle, we are happy to assist you. The best way is to check the part number of the currently installed part and compare it with the numbers

Guarantee and Warranty - Original Parts or Not?

Our clients often ask us, if we are selling original parts, since our prices are so competitve.We can assure you that our products are all original Bosch parts, new and unfurbished, in their original box. The photos are original photos.

You will receive 2 years of guarantee and a 4 weeks money back guarantee. This means, if you want to return the part within 4 weeks, we will refund the full amount.

Express letters are not being offered by the local post authorities in the following countries:
Armenia, Chile, China, Croatia, Georgia, India, Italy, Korea, Peru, Romania, Serbia, Czech Republic, Turkey and all African countries

Our Service

Fast delivery: The parts will be shipped within 24 hours after we have received your payment.

Trackable: You will receive an email with the tracking number which allows you to follow your delivery online.

Insurance: The parts are insured against damage and loss without any additional costs.

One Payment: You pay only once for shipping - no matter, how many parts you order.

DHL Express or FedEx: We offer also shipping with FedEx or DHL Express, but the costs are between 60 an 100 Euros.

Delivery Service in your country: Please note, that we ship the parts from Germany either with German Post or with DHL. Still they will be delivered by the local partners of DHL or German Post. This can be your local mail or parcel service, e.g. UPS in USA.

Payment Methods

Paypal - Safe shopping and shipping within 24 hours.

Bank transfer - You transfer the amount from your bank account to our bank. The item will be shipped, as soon as the money arrives in our bank account. Our bank details are:

Account Owner [BankAccountOwner]

BIC/SWIFT [BankSwift]

IBAN [BankIban]

Bank: Postbank Berlin

Moneybookers/Skrill - Shipping within 24 hours.

Frequently Asked Questions
Air mass meter information and installation video:
How do I know that my mass airflow sensor is faulty?

Only car garages are capable of conducting distinct fault diagnoses and reading out the error messages.

Why is my mass airflow sensor faulty?

Mass airflow sensors are extremely sensitive replacement parts. The hot film meter inside the mass airflow sensor is very susceptible and can be easily contaminated by dirty and oil. This may be due to different reasons. Environmental conditions (rain, splash water...), sand, dust, road salt, vibrations, oil and so on affect the efficient readings of the mass airflow sensor. Oil particles from oil covered sports air filters may damage the sensor. A faulty or damaged mass airflow sensor sends the wrong input signal to the electronic control unit which in turn wrongly activates other components. Regularly replacing the air filters helps to extend the durability of the mass airflow sensor.

Why does my car need a mass airflow sensor?

The mass airflow sensor measures the air mass, which flows through the air filter to the engine. The data is then sent to the control unit in order to specify the injection rate of the fuel. The combustion engine requires 14,7 kg of air for the optimal combustion of 1kg of fuel. In order to regulate the correct proportion of fuel and air in any operational condition, the engine control unit requires the exact information concerning the intake of the air mass. The mass airflow sensor plays an integral part in the reduction of exhaust and air supply.

What does a mass airflow sensor consist of?

A mass airflow sensor consists of a case which is positioned between the air filter and air pipe. The sensor is either screwed or firmly attached inside the case. The sensor in turn includes a hot film meter and electronics. The sensor measures the air which flows to the engine through the air filter and sends the data to the control unit.

Is it sufficient to use cleaner of the breaks or other cleaning agents to clean the mass airflow sensor?

The sensor membrane may be severely damaged by the clean up. Never apply compressed air as this may also damage the sensor.

Is there a difference between air volume sensor and mass airflow sensor?

No. Air volume sensors and mass airflow sensors refer to the same item. Other terms are hot film meter, HFM, airflow sensor, MAF or MAFS.

Why is it recommendable to fit a hot film meter instead of a hot wire sensor?

One distinguishes usually between hot film meters (HFM) and hot wire sensors. The hot film meter is not as sensitive as the hot wire sensor. Deposits accumulate often on the hot wire which affects a correct reading. Our offered product range specialises solely on hot film meter sensors.

Why are the prices at MAF Service GmbH more favourable than at other vendors?

Unlike other vendors, we have specialised exclusively on mass airflow sensors and offer these for selected car models only. This enables us to purchase larger quantities and allows us to keep reduced storage and administrative expenditures, which benefits our customers.

However, other brands have no bearing on the quality of our products. Our mass airflow sensors are subject to regular quality controls, so we can deliver the best in quality to our customers.

Is it sufficient if I exchange just the sensor or do I have to replace the entire case?

In cases where the mass airflow sensors are screwed to the case, you should definitely replace the entire mass airflow sensor. Otherwise, according to manufacturers, the sensor could be placed in

the wrong measurement position, in addition to the old dirty case, and affect the readings. Hence, the guarantee would expire if the sensor was removed from the case.
What do I have to pay attention to when fitting a new mass airflow sensor?

We recommend that you exchange the air filter before you fit the new mass airflow sensor! A grubby or inferior air filer is often the cause for damages of the mass airflow sensor. The air-filter-hous

ing should be exhausted - not brushed out.

A faultless air filter increases the efficiency and durability of the mass airflow sensor. The air filter should be replaced around every 25,000 km.

Please pay attention to the mounting direction. The arrow on the case indicates the direction of the air flow (from the mass airflow sensor to the engine).

The error memory does not have to be erased on purpose. It may be that your control unit resets the error memory only after a 100km.

MAF, hotfilm sensor, HFM, air flow meter sensor, mass airflow meter and others are all synonyms for airflow meter. Americans mostly call it MAF which stands for mass flow meter or sensor, Europeans prefer calling it airflow meter.
AFM is just the abbreviation for airflow meter.
Hotfilm sensors are airflow meters that use the hotfilm technology, which is more exact than the old hotwire technology.

Conditions of Use
§ 1 Conclusion of contract

Please be aware that the products we offer on this website represent only an unconditional offer and are subject to the relevant stock of inventory. In this respect it is solely a matter of inviting a binding offer to buy. However, all items and products offered in our on-line shop are normally in stock and immediately available.

We reserve the right that all information and specifications regarding the items -in particular with regards to descriptions and prices - may be subject to obvious mistakes and printing errors.

The buyer makes sure that his quoted e-mail address is correct. According to § 130 BGB (German Civil Code), e-mails are considered as delivered, once they have arrived in the message inbox of the provider and are stored and available under the usual circumstances.

Your order is being carried out by clicking on the order button after entering the required data. You will receive a prompt confirmation of receipt. We will then check the availability of your ordered items. You will receive a confirmation as far as your order is available. The contract of purchase materialises once you have received the confirmation.

You will be notified if your order should not be available. In this case no contract of purchase will have materialised. You will also be notified should your order be partially available enquiring whether you would sign a contract for part of the services. The contract materialises in relevance to your response.

The buyer makes sure that his quoted e-mail address is correct. According to § 130 BGB (German Civil Code), e-mails are considered as delivered, once they have arrived in the message inbox of the provider and are stored and available under the usual circumstances. Should you not be notified within 24 hours after placing your order, we recommend that you send us a short notice.

The contract materialises after the confirmation of the order when placed on the phone or fax in accordance to the conditions stated above.

§ 2 Prices and delivery charges, destinations, payment

The quoted price is the gross price plus the delivery charge. Prices include 19 % VAT.

All payments of invoices are due immediately.

The dispatchment of the item takes place after the payment on the same day or the next working day at the latest. You will be sent a dispatchment e-mail which includes the relevant package delivery number. The delivery takes place according to §§ 474 paragraph 2, 447 BGB (German Civil Code) at our risk.

We deliver shipments to all countries that are serviced by the Deutsche Post AG (www.deutschepost.de). The buyer bears the cost for possible customs duty and possible import turnover taxes for deliveries outside of the EU. The buyer shall indemnify us from any claims. Deliveries within Europe are shipped with German Post which includes a delivery fee of 6.05 €. The regular delivery time averages between 2 - 5 days. Cash on delivery abroad and overseas is not possible. Shipments within the European Union will include 19% German VAT. Outside of the European Union the 19% VAT will automatically deducted from the price. Customs and taxes might be charged from your country. The delivery outside of Europe will take place with Deutsche Post for 6.05 €. Please check with us if you prefer DHL or FedEx. We charge the delivery fee of course only once should the order be dispatched as partial deliveries. However, different terms apply if the dispatchment takes place as partial deliveries at the request of the buyer. Please understand that we can accept advanced payment only. You can choose between the following methods of payment:

Bank transfer : transfer your payment to our account, your order will be dispatched after receipt of payment.

Credit card payment - (American Express, Visa and Mastercard) using the safe Mobile 3D-Secure"-technology, your order will be immediately dispatched.

Payment through Paypal, your order will be immediately dispatched.

Payment through Moneybookers, your order will be immediately dispatched.

§3 Right of Rescission

Provided that you concluded the contract of purchase as sole proprietor for purpose that cannot be attributed to your commercial or self-employed profession (consumer according to §13 BGB) you may withdraw from the contract in writing (i.e. Letter, fax, email) or by sending the purchase back to us without giving reasons within 30 days. The time period does not start before you have received your order and not before you have been made aware of this regulation in writing. Ensuring your rights of withdrawal just return your written disclaimer or your order to us in the period of time stated above. Please send your disclaimer to the following address:

MAF Service GmbH

§ 4 Consequence of disclaimer

In case of an effective disclaimer the item and service received from both parties have to be reimbursed and as the case may be relevant benefits (i.e. Interests) returned. If the received item and service cannot be returned at all or only partially or in a bad condition, you are required to pay compensation as the case may be. Regarding the surrender of items, this does not apply if the impairment of the item can be put down exclusively to its inspection - as it would have been possible in store. Incidentally you can avoid the liability to pay damages or compensation if you consider the item not as your property and avoid any handling that might affect its value.

Transportable items are to be sent back at our risk. Items which are not transportable will be collected from you. You required to cover the cost for the return, if the delivered item complies with the ordered item and if the price of the item does not exceed 40,00€ . The same applies for higher priced items, if at the point in time of the disclaimer you have not returned the service or reciprocate the contractually agreed instalments. In any other case the return of the item is free of charge. Liabilities for the reimbursement of payments have to be met within 30 days after sending your disclaimer. We would like to ask you to return any items as not prepaid. If you want to make use of your right to withdraw, we would like to send you a return form and collect the item from you right away.

§5 Guaranty, accountability, right of retention, offsetting

The buyer is entitled to the right of retention only if his counter-claim is based on the same condition of contract. An offsetting of the buyer is excluded, unless the counter-claims of the buyer are assessed as legally binding or not challenged through us. We ensure that the delivery items according to the respective level of technology are free of defects. Obvious deficiencies that are also recognisable for the average layman customer have to be reported to us within a period of two weeks after receiving the item. The buyer loses his warranty rights if he fails to report the deficiencies.

As far as there are is a deficiency of the item rendered, we are obliged to remove the deficiency of or to deliver another time without deficiencies, relinquishing it to the buyer to decide (supplementary service). A deficiency is also considered the delivery of the wrong item or the delivery of smaller amounts. Should one or both kind of supplementary services be impossible or unreasonable to accomplish, are we entitled to deny the supplementary service. In these cases or in case that the removal of the deficiencies should fail twice or should be delayed beyond the adequate time limit, the buyer has the right to chose either purchase the item at a lower price (mitigation) or to withdraw from the contract. Further compensation on behalf of the buyer, irrespective of any legal grounds (in particular the violation of contractual secondary obligation, delay, claim for compensation because of illegal acts or reimbursement of expenses excluding the one referred to in § 439 Paragraph. 2 BGB (German Civil Code)) are excluded. This does not apply in case of a violation of obligation, which compliance allows the adequate and orderly enforcement of the contract and which adherence the contractual partner may regularly trust (cardinal obligation) or if we or one of our legal representatives or assistants are imputed with premeditation or gross negligence. The disclaimer also does not apply in a case of culpable violation of life, the body or health as well as the adoption of guaranty or assurance of attributes as far as the object of guaranty or assurance activates the accountability. In case of accountability regarding the violation of cardinal obligation, the compensation remains restricted to the contract coherent, predictable damage. The limitation of liability also does not apply with regards to requirements from the Product Liability Act. A guaranty or covenant in the sense of accentuation of accountability or the adoption of a special obligation to meet claims is only considered as ceded only if the terms guaranty and assurance are explicitly expressed.

Warranty claims are prescribed within one year after the passing of risk regarding all our delivered newly manufactured products. As far as you, as the sole proprietor, have closed the sales contract for reasons that are attributed neither to your commercial or self-employed profession (consumer according to §13 BGB (German Civil Code) the limitation period averages 2 years. We accept the warranty for used items only as far as you have closed the sales contract as sole proprietor for a purpose that are attributed neither to your commercial or self-employed profession (consumer according to §13 BGB (German Civil Code)). The limitation period averages 1 year after the passing of risk. Otherwise the warranty for used items is excluded.

§ 6 Use of customer data/protection of privacy

Personal data, which are collected through the website Luftmassenmessershop, MAF-Shop and KFZ-Teile Heuser, are treated as strictly confidential and are used exclusively for the handling and processing of your queries (orders, offers, quote requests, product requests). If you should purchase this article, your personal data will be saved and transferred to Afterbuy (www.afterbuy.de) for the purpose of transaction. With the purchase you formally agree to the conditions and transfer.

The processing and saving of data takes place according to the German data privacy regulations. Information which do not contain personal data (i.e. operating system, internet browser, number of hits) are solely used for the purpose of monitoring the popularity of our websites. These data and information do not allow any drawing of conclusions regarding the individual person and user.

§ 7 Place of fulfilment, place of jurisdiction, applicable law

If individual terms of the General Terms and Conditions should be feeble, other terms will remain unaffected. In all cases the entered agreements with us are subject to German law in camera of international privacy law and UN sales law. This applies also to orders placed from abroad or deliveries dispatched abroad and overseas. If the buyer does not have his general place of jurisdiction based in the Federal Republic of Germany or should he relocate his place of residence outside of the Federal Republic of Germany at a later point in time or should his place of residence be unknown at the time of legal action, the general place of jurisdiction in case of legal business disputes shall be located where our company is based at.